CentOS 4 / 5 : libuser (CESA-2011:0170)

medium Nessus Plugin ID 51885

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Synopsis

The remote CentOS host is missing one or more security updates.

Description

Updated libuser packages that fix one security issue are now available for Red Hat Enterprise Linux 4, 5, and 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The libuser library implements a standardized interface for manipulating and administering user and group accounts. Sample applications that are modeled after applications from the shadow password suite (shadow-utils) are included in these packages.

It was discovered that libuser did not set the password entry correctly when creating LDAP (Lightweight Directory Access Protocol) users. If an administrator did not assign a password to an LDAP based user account, either at account creation with luseradd, or with lpasswd after account creation, an attacker could use this flaw to log into that account with a default password string that should have been rejected. (CVE-2011-0002)

Note: LDAP administrators that have used libuser tools to add users should check existing user accounts for plain text passwords, and reset them as necessary.

Users of libuser should upgrade to these updated packages, which contain a backported patch to correct this issue.

Solution

Update the affected libuser packages.

Plugin Details

Severity: Medium

ID: 51885

File Name: centos_RHSA-2011-0170.nasl

Version: 1.14

Type: local

Agent: unix

Family: CentOS Local Security Checks

Published: 2/6/2011

Updated: 1/4/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Vulnerability Information

CPE: p-cpe:/a:centos:centos:libuser-devel, cpe:/o:centos:centos:4, cpe:/o:centos:centos:5, p-cpe:/a:centos:centos:libuser

Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 4/20/2011

Vulnerability Publication Date: 1/22/2011

Reference Information

CVE: CVE-2011-0002

BID: 45791

RHSA: 2011:0170

Detections

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